Pig house air environment detection sampling device and method

Abstract

The invention discloses a hog house air environment detecting and sampling device and method, the hog house air environment detecting and sampling device comprises a supporting seat and an air suction cylinder arranged on the supporting seat, a sampling cylinder mounting seat is rotatably mounted on the supporting seat, and a plurality of sampling cylinders are placed on the sampling cylinder mounting seat. According to the hog house air environment detecting and sampling device and method, through cooperation of the air extraction driving assembly, the air guide assembly and the air extraction barrel, hog house air extraction is achieved, in the hog house air extraction process, the air guide assembly communicates with the sampling barrel, then the extracted air is guided into the sampling barrel in the mode that air in the air extraction barrel is squeezed, and the hog house air environment detecting and sampling device is used for detecting the hog house air environment. According to the sampling device, the air guiding assembly is arranged on the sampling barrel to complete air sample retention, after air sample injection is completed, the air guiding assembly and the sampling barrel are separated, under the cooperation of the rotating preparation part and the sampling barrel placement base, sequential switching of stations where the sampling barrel is located is achieved, and support is provided for automatic continuous sampling of the sampling barrel.

Description

Technical Field

[0001] The present invention relates to the technical field of air detection and sampling, and specifically to a pigsty air environment detection and sampling device and method. Background Art

[0002] Pigs are very sensitive to air quality, and a poor air environment will have a serious impact on their health. For example, too high ammonia concentration may cause health problems such as respiratory diseases and eye diseases in pigs; too high carbon dioxide concentration may cause pigs to suffocate; and the accumulation of gases such as methane may increase the explosion risk in the pigsty. By regularly or real-time monitoring the air environment in the pigsty, these harmful gases can be detected and processed in time, so as to ensure the health of pigs.

[0003] When the existing air detector is used for on-site air analysis in a pigsty, there is a lack of retention and sampling of air samples. In order to achieve the retention and sampling of air detection samples, the conventional method is to use a piston to draw air for sampling. For example, a sampling device for indoor air quality detection described in the patent application No. 201922188566.2. By manually rotating the screw forward, the sealing block moves to the left, so that the left side of the sampling cavity is connected to the pipeline. Then, manually pull the push rod, which drives the piston plate to move to the right, so as to draw external air into the left side of the sampling cavity through the pipeline. Then, manually reverse the screw, and the screw drives the sealing block to move to the right, so as to seal the pipeline, and the sampling is completed. It can be seen that this method requires manual intervention at all times, which is not only inconvenient to operate, but also not conducive to all-weather automatic sampling and retention.

[0004] Based on the retrieval of the above information, it can be seen that the existing air sampling and retention devices have the defects of low automation degree and the need for frequent manual intervention and replacement of the retained samples. Therefore, a pigsty air environment detection and sampling device and method are specifically proposed, which can effectively reduce manual intervention, is simple to operate, and can realize the automatic sampling and sample retention of several sampling cylinders. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a pigsty air environment detection and sampling device and method, which solves the problems of low automation degree of the existing air sampling and retention devices and the need for frequent manual intervention and replacement of the retained samples.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A pigsty air environment detection and sampling device, including a support base and an air extraction cylinder arranged on the support base. A sampling cylinder placement base is rotatably installed on the support base. A plurality of sampling cylinders are placed on the sampling cylinder placement base. A sampling cylinder positioning component and a rotation preparation component are also arranged on the sampling cylinder placement base. An air extraction driving component and a gas guiding component are arranged on the air extraction cylinder;

[0007] The air extraction driving assembly is used to drive the air extraction cylinder to extract air, and drive the air guiding assembly to communicate with the sampling cylinder;

[0008] The air extraction driving assembly is also used to drive the air extraction cylinder to exhaust air, drive the air guiding assembly to separate from the sampling cylinder, and drive the rotating preparatory part to intermittently rotate the sampling cylinder mounting seat.

[0009] In order to realize the support and positioning of the air extraction cylinder, and facilitate the taking and placing of several sampling cylinders, the present invention is further configured as: the support seat includes a chassis, both the front and rear sides of the top of the chassis are fixedly connected with loading plates through support rods, the top of the loading plate is fixedly connected with the bottom of the air extraction cylinder through two connecting plates, and the right side of the top of the chassis is fixedly connected with the bottom of the air extraction cylinder through a support plate;

[0010] The sampling cylinder mounting seat is rotatably installed on the top of the chassis, several placing grooves are opened on the top of the sampling cylinder mounting seat, the placing grooves are used in cooperation with the sampling cylinders, and a first magnetic attraction ring used in cooperation with the sampling cylinder is fixedly embedded at the bottom of the inner cavity of the placing groove.

[0011] In order to realize air sampling, provide power for storing the air sample in the sampling cylinder, and provide drive for the sequential sampling of several sampling cylinders, the present invention is further configured as: the air extraction driving assembly includes an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly installed with a herringbone frame, a push rod is fixedly installed at the top of one side of the herringbone frame, one end of the push rod penetrates through the air extraction cylinder and is fixedly installed with a piston plate;

[0012] On both sides of the bottom of one side of the herringbone frame, a gas guiding tooth plate and a push plate are respectively fixedly installed, a rotating driving tooth plate is slidably installed on one side of the push plate through a slot, a first arc angle is arranged on the tooth side of the rotating driving tooth plate, and a fourth spring is fixedly connected between the inner parts of the slots of the rotating driving tooth plate and the push plate;

[0013] The electric telescopic rod is fixedly installed on one side of the air extraction cylinder through a connecting plate, and one end of the electric telescopic rod penetrates through the support plate and extends to one side of the support plate.

[0014] In order to facilitate the air extraction of the air extraction cylinder and introduce the extracted air into the sampling cylinder, the present invention is further configured as: the air guiding assembly includes an air guiding cover, an external thread pipe is communicated with the bottom of the air guiding cover, a gear sleeve is sleeved and threadedly installed at the bottom of the outer periphery of the external thread pipe, a tapered head air duct is fixedly installed through the bottom of the gear sleeve, and the top of the outer periphery of the tapered head air duct is in sliding contact with the inner surface of the external thread pipe;

[0015] The air guiding cover is fixedly installed on one side of the air extraction cylinder and is communicated with the air extraction cylinder;

[0016] The air guiding toothed plate is meshed and fitted with the outer periphery of the gear sleeve.

[0017] In order to conveniently retain the sample of the extracted air, the present invention is further configured as follows: a jack for cooperating with the tapered head air duct is provided at the top of the sampling cylinder, a stepped cylinder is fixedly installed at the top of the inner cavity of the sampling cylinder, a sliding plug is slidably installed at the bottom of the stepped cylinder, a collar is fixedly installed on the outer periphery of the sliding plug, the collar is slidably installed at the top of the inner cavity of the stepped cylinder, a second spring is fixedly installed between the top of the limiting ring and the top of the inner cavity of the sampling cylinder, a plurality of air guiding grooves are provided at the top of the sliding plug, a sealing plate is fixedly installed at the bottom of the sliding plug, an isolation plug is also slidably installed inside the sampling cylinder, and a through hole is provided at the bottom of the sampling cylinder;

[0018] First magnets are inlaid and fixed at the top of the isolation plug and the bottom of the sealing plate respectively, and the two first magnets are used in an attracting cooperation manner. Second magnetic rings are inlaid and fixed at the bottom of the isolation plug and the bottom of the inner cavity of the sampling cylinder respectively, and the two second magnetic rings are used in an attracting cooperation manner, and the second magnetic ring arranged at the bottom is used in cooperation with the first magnetic ring;

[0019] An air extraction pipe is communicated with one side of the sampling cylinder, the air extraction pipe is arranged at the bottom of the stepped cylinder, and a control valve is arranged on the outer periphery of the air extraction pipe.

[0020] In order to ensure the stability of the position of the sampling cylinder, the present invention is further configured as follows: the sampling cylinder positioning assembly includes a limiting ring, a plurality of positioning rods are fixedly installed at the bottom of the limiting ring, an assembly ring is sleeved and slidably installed on the outer periphery of the plurality of positioning rods, a third spring is sleeved on the outer periphery of the positioning rod, and the top end of the third spring is fixedly connected with the bottom of the assembly ring;

[0021] The air extraction pipe is arranged between the limiting ring and the assembly ring, a guiding rod is fixedly installed at the bottom of the air extraction pipe, and a plurality of guiding holes for cooperating with the guiding rod are provided at the top of the assembly ring;

[0022] A pressing ring is fixedly installed on the inner surface of the assembly ring through a connecting plate;

[0023] A plurality of the positioning rods are all fixedly installed at the top of the sampling cylinder mounting seat, and the bottom end of the third spring is fixedly connected with the top of the sampling cylinder mounting seat.

[0024] The present invention is further configured as follows: the rotation preparation part includes a rotating shaft, a driving gear is sleeved and fixedly installed on the outer periphery of the rotating shaft, the top end of the rotating shaft is rotationally connected with the bottom of the loading plate through a bearing, and the bottom end of the rotating shaft is fixedly connected with the top of the sampling cylinder mounting seat;

[0025] The driving gear is meshed and fitted with the rotation driving toothed plate.

[0026] To ensure the sequential use of several sampling cylinders, the present invention is further configured as follows: A reverse stop assembly that cooperates with the drive gear is fixedly installed on one side of the loading plate. The reverse stop assembly includes an installation box. A limit plate is fixedly installed on one side of the installation box. A first spring is fixedly connected between one side of the limit plate and one side of the inner cavity of the installation box. The limit plate meshes with the drive gear, and a second circular arc angle that cooperates with the drive gear is further provided on one side of the limit plate.

[0027] The present invention provides a pigsty air environment detection sampling device and method. It has the following beneficial effects:

[0028] (1) Through the cooperation of the air extraction drive assembly, the air guiding assembly and the air extraction cylinder, the present invention realizes the extraction of pigsty air. During the extraction of pigsty air, the air guiding assembly is connected to the sampling cylinder. Then, by squeezing the air in the air extraction cylinder, the extracted air is introduced into the sampling cylinder to complete the retention of the air sample. After the air sample is injected, the air guiding assembly and the sampling cylinder are separated. With the cooperation of the rotation preparation part and the sampling cylinder placement seat, the sequential conversion of the working positions where the sampling cylinders are located is realized, providing support for the automatic continuous sampling of the sampling cylinders.

[0029] (2) Through the setting of the sampling cylinder positioning assembly, the position of the sampling cylinder in the vertical direction is limited, ensuring the stable connection and reliable separation between the sampling cylinder and the air guiding assembly, and thus providing guarantee for the long-term stable use of the device.

[0030] (3) Through the setting of the stepped cylinder, the sliding plug, the collar, the second spring and the sealing plug, the tightness of the top of the sampling cylinder is ensured. After the conical head air duct is inserted into the sampling cylinder, with the cooperation of the air guiding groove, it is ensured that the air is smoothly introduced between the stepped cylinder and the sealing plug. After the conical head air duct is separated, the automatic sealing of the top of the sampling cylinder is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the external structure schematic diagram of the present invention;

[0032] Figure 2 is the connection schematic diagram of the support base, the air extraction cylinder, the rotation preparation part, the sampling cylinder placement seat, the push rod, the piston plate, the air guiding cover and the external threaded pipe structures of the present invention;

[0033] Figure 3 is the internal structure schematic diagram of the sampling cylinder without air sampling in the embodiment of the present invention;

[0034] Figure 4 is the internal structure schematic diagram of the sampling cylinder after air sampling is completed in the embodiment of the present invention;

[0035] Figure 5 Schematic connection diagram of the sampling cylinder mounting seat and the sampling cylinder positioning component structure of the present invention;

[0036] Figure 6 For the present invention Figure 2 Enlarged schematic diagram of the structure at position A in the present invention;

[0037] Figure 7 Schematic diagram of the structure of the air extraction drive component, rotating shaft, drive gear, gear sleeve and conical head air duct of the present invention;

[0038] Figure 8 Schematic diagram of the structure when the air guide tooth plate and the gear sleeve are in the meshing state in the embodiment of the present invention;

[0039] Figure 9 Internal structure schematic diagram of the present invention.

[0040] In the figure:

[0041] 1. Support base; 101. Chassis; 102. Loading plate; 103. Support plate;

[0042] 2. Air extraction cylinder;

[0043] 3. Sampling cylinder mounting seat; 301. Placing groove; 302. First magnetic attraction ring;

[0044] 4. Sampling cylinder; 401. Insertion hole; 402. Step cylinder; 403. Sliding plug; 404. Collar; 405. Second spring; 406. Air guide groove; 407. Sealing plate; 408. Isolation plug; 409. First magnet; 4010. Second magnetic attraction ring; 4011. Sampling air pipe; 4012. Control valve; 4013. Guide rod; 4014. Through hole;

[0045] 5. Sampling cylinder positioning component; 501. Limiting ring; 502. Positioning rod; 503. Assembly ring; 504. Third spring; 505. Guide hole; 506. Pressing ring;

[0046] 6. Rotation preparation part; 601. Rotating shaft; 602. Drive gear; 603. Reverse stop component; 6031. Installation box; 6032. Limiting plate; 6033. First spring; 6034. Second arc angle;

[0047] 7. Air extraction drive component; 701. Electric telescopic rod; 702. Herringbone frame; 703. Push rod; 704. Piston plate; 705. Air guide tooth plate; 706. Push plate; 707. Rotation drive tooth plate; 708. First arc angle; 709. Fourth spring;

[0048] 8. Air guide component; 801. Air guide cover; 802. External thread pipe; 803. Gear sleeve; 804. Conical head air duct. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] Please refer to Figures 1-9 , the embodiments of the present invention provide the following technical solutions:

[0051] Embodiment 1

[0052] A sampling device for detecting the air environment in a pigsty, including a support base 1, an air extraction cylinder 2, a sampling cylinder placement seat 3, a sampling cylinder 4, an air extraction driving component 7 and an air guiding component 8. Among them, the support base 1 includes a chassis 101, the sampling cylinder placement seat 3 is rotatably installed on the top of the chassis 101, and both the front and rear sides of the top of the chassis 101 are fixedly connected with loading plates 102 through support rods. The top of the loading plate 102 is fixedly connected with the bottom of the air extraction cylinder 2 through two connecting plates to realize the support and positioning of the air extraction cylinder 2. The right side of the top of the chassis 101 is fixedly connected with the bottom of the air extraction cylinder 2 through a support plate 103 to ensure the stable support of the air extraction cylinder 2 in a three-point support manner.

[0053] Furthermore, in order to facilitate the stable placement of the sampling cylinder 4, a placement groove 301 matching the sampling cylinder 4 is opened at the top of the sampling cylinder placement seat 3, and a first magnetic attraction ring 302 matching the sampling cylinder 4 is inlaid and fixed at the bottom of the inner cavity of the placement groove 301. The sampling cylinder 4 is adsorbed by the first magnetic attraction ring 302 to realize the stable placement and convenient taking and placing of the sampling cylinder 4.

[0054] As a preferred solution, in order to realize the convenient and controllable connection between the air extraction cylinder 2 and the sampling cylinder 4, the air guiding component 8 includes an air guiding cover 801. The air guiding cover 801 is fixedly installed on one side of the air extraction cylinder 2 and is connected to the air extraction cylinder 2. The bottom of the air guiding cover 801 is connected with an external threaded pipe 802. A gear sleeve 803 is sleeved and threadedly installed at the bottom of the outer periphery of the external threaded pipe 802. The gear sleeve 803 is a cylindrical structure with teeth on the outer periphery and a threaded groove inside. A tapered head air guide pipe 804 is fixedly installed through the bottom of the gear sleeve 803. A plurality of notches are opened at the bottom of the tapered head air guide pipe 804 to ensure the smooth flow of air after the end of the tapered head air guide pipe 804 is blocked. The top of the outer periphery of the tapered head air guide pipe 804 is in sliding contact with the inner surface of the external threaded pipe 802. During use, as long as the gear sleeve 803 is rotated, the tapered head air guide pipe 804 can be driven to perform lifting adjustment. On this basis, when the tapered head air guide pipe 804 is driven to descend, it can be connected to the sampling cylinder 4 through the tapered head air guide pipe 804, and when the tapered head air guide pipe 804 is driven to ascend, the separation between the tapered head air guide pipe 804 and the sampling cylinder 4 can be realized.

[0055] As a preferred solution, for the convenience of convenient sampling and sampling retention of the sampling cylinder 4, a jack 401 is provided at the top of the sampling cylinder 4 for use in cooperation with the tapered head gas guide pipe 804. A stepped cylinder 402 is fixedly installed at the top of the inner cavity of the sampling cylinder 4. A sliding plug 403 is slidably installed at the bottom of the stepped cylinder 402. A collar 404 is fixedly installed on the outer periphery of the sliding plug 403. The collar 404 is slidably installed at the top of the inner cavity of the stepped cylinder 402. A second spring 405 is fixedly installed between the top of the limit ring 501 and the top of the inner cavity of the sampling cylinder 4. A plurality of air guide grooves 406 are provided at the top of the sliding plug 403. A sealing plug 407 is fixedly installed at the bottom of the sliding plug 403. The stepped cylinder 402 can be sealed at the bottom opening by using the sealing plug 407, providing top sealing support for the sampling retention of the sampling cylinder 4. An isolation plug 408 is also slidably installed inside the sampling cylinder 4. First magnets 409 are inlaid and fixed at the top of the isolation plug 408 and the bottom of the sealing plug 407. The two first magnets 409 are attracted and used in cooperation. In this way, an expandable gas storage space is formed in the sampling cylinder 4 by the isolation plug 408, the sealing plug 407 and the stepped cylinder 402, ensuring the purity of the sampled gas. For the convenience of the movement of the isolation plug 408, a through hole 4014 is provided at the bottom of the sampling cylinder 4. Similarly, an air hole communicating with the through hole 4014 is provided at the bottom of the inner cavity of the placement groove 301. Further explanation, for the convenience of the export of the gas after sampling, a gas extraction pipe 4011 is connected to one side of the sampling cylinder 4. The gas extraction pipe 4011 is arranged at the bottom of the stepped cylinder 402, and a control valve 4012 is arranged on the outer periphery of the gas extraction pipe 4011. It should be noted that, as Figure 3 shown, when the sampling cylinder 4 does not perform sampling retention, the bottom of the gas extraction pipe 4011 is blocked by the isolation plug 408, but the top of the gas extraction pipe 4011 is communicated with the cavity between the isolation plug 408 and the stepped cylinder 402. Such a design provides support for the complete extraction of the impurity gas that may affect the sampled air in the sampling cylinder 4, further ensuring the purity of the sampled gas.

[0056] Further explanation, second magnetic attraction rings 4010 are inlaid and fixed at the bottom of the isolation plug 408 and the bottom of the inner cavity of the sampling cylinder 4. As Figure 4 shown, after the sampling cylinder 4 completes air sampling, the two second magnetic attraction rings 4010 are attracted and cooperate with each other, and the second magnetic attraction ring 4010 arranged at the bottom is used in cooperation with the first magnetic attraction ring 302, which can further ensure the stability of the position of the sampling cylinder 4.

[0057] As an extended explanation, in order to ensure the sealing effect of the tapered head gas guide pipe 804 inserted into the jack 401 for inflating and retaining in the sampling cylinder 4, a sealing ring is sleeved and fixedly installed at the bottom of the outer periphery of the tapered head gas guide pipe 804. After the tapered head gas guide pipe 804 is inserted into the jack 401, the connection gap between the tapered head gas guide pipe 804 and the jack 401 is blocked by the sealing ring.

[0058] As a preferred solution, in order to achieve the convenient rotary drive of the gear sleeve 803 and to enable the driving of the air extraction cylinder 2 for air extraction, the conical head air guide pipe 804 can be driven to communicate with the sampling cylinder 4, and when the air extraction cylinder 2 is driven to exhaust, the conical head air guide pipe 804 can be driven to separate from the sampling cylinder 4. The air extraction drive assembly 7 includes an electric telescopic rod 701, which is electrically connected to an external power supply and is controlled by a control switch. The electric telescopic rod 701 is fixedly installed on one side of the air extraction cylinder 2 through a connecting plate. One end of the electric telescopic rod 701 penetrates through the support plate 103 and extends to one side of the support plate 103. A herringbone frame 702 is fixedly installed at the telescopic end of the electric telescopic rod 701. A push rod 703 is fixedly installed at the top of one side of the herringbone frame 702. One end of the push rod 703 penetrates through the air extraction cylinder 2 and is fixedly installed with a piston plate 704. By the reciprocating sliding of the piston plate 704 inside the air extraction cylinder 2, the extraction and exclusion of the air in the pigsty are realized. A gas guide tooth plate 705 is fixedly installed at one side of the bottom of one side of the herringbone frame 702, and the gas guide tooth plate 705 is meshed and matched with the outer circumference of the gear sleeve 803.

[0059] It should be noted that after the gas guide tooth plate 705 drives the gear sleeve 803 to rotate and the gear sleeve 803 drives the conical head air guide pipe 804 to insert into the sampling cylinder 4, and after a part of the gas guide groove 406 moves below the stepped cylinder 402, at this time, the sealing ring seals the connection gap between the conical head air guide pipe 804 and the jack 401, and the air extraction cylinder 2 can continue to extract air, but the gas guide tooth plate 705 will separate from the gear sleeve 803. Among them, the stroke of the gas guide tooth plate 705 meshing with the gear sleeve 803 again is the stroke for effectively inflating the sampling cylinder 4. During this stroke, the air in the air extraction cylinder 2 is introduced into the sampling cylinder 4 through the gas guide groove 406. After the gas guide tooth plate 705 meshes with the gear sleeve 803, the conical head air guide pipe 804 rises. Under the pulling force of the return spring force of the second spring 405, the blocking plate 407 is pulled by the sliding plug 403 to block the bottom of the stepped cylinder 402, and one air sampling is completed.

[0060] Embodiment 2

[0061] As an improvement over the previous embodiment, a pigsty air environment detection and sampling device further includes a sampling cylinder positioning component 5 and a rotation preparation member 6. Among them, the rotation preparation member 6 includes a rotating shaft 601, and a driving gear 602 is sleeved and fixedly installed on the outer periphery of the rotating shaft 601. The top end of the rotating shaft 601 is rotatably connected to the bottom of the loading plate 102 through a bearing, and the bottom end of the rotating shaft 601 is fixedly connected to the top of the sampling cylinder mounting seat 3. On the other side of the bottom of one side of the herringbone frame 702, a push plate 706 is fixedly installed. On one side of the push plate 706, a rotation driving tooth plate 707 is slidably installed through a slot. The driving gear 602 is engaged with the rotation driving tooth plate 707. On one side of the teeth of the rotation driving tooth plate 707, a first arc angle 708 is provided, and a fourth spring 709 is fixedly connected between the slot inside the rotation driving tooth plate 707 and the push plate 706. This design can ensure that the driving gear 602 can only rotate clockwise in the downward viewing angle. As a detailed description, twelve sampling cylinders 4 are provided. Similarly, twelve placement slots 301 that cooperate with the sampling cylinders 4 are opened at the top of the sampling cylinder mounting seat 3. As twelve workstations, the workstation directly below the conical head air duct 804 is the processing workstation, and the remaining workstations are preparation workstations. Driving the driving gear 602 to rotate thirty degrees once can realize the sequential sampling of the twelve sampling cylinders 4. To further ensure the stability of the driving gear 602, a reverse stop component 603 that cooperates with the driving gear 602 is also fixedly installed on one side of the loading plate 102. The reverse stop component 603 includes a mounting box 6031. On one side of the mounting box 6031, a limiting plate 6032 is fixedly installed. A first spring 6033 is fixedly connected between one side of the limiting plate 6032 and one side of the inner cavity of the mounting box 6031. The limiting plate 6032 is engaged with the driving gear 602, and a second arc angle 6034 that cooperates with the driving gear 602 is also provided on one side of the limiting plate 6032. The setting of the reverse stop component 603 ensures that the driving gear 602 can only rotate clockwise in the downward viewing angle.

[0062] For stability considerations, since the conical head air duct 804 descends while rotating, to avoid the possible situation where the conical head air duct 804 drives the sampling cylinder 4 to rise, the sampling cylinder positioning assembly 5 includes a limit ring 501. A plurality of positioning rods 502 are fixedly installed at the bottom of the limit ring 501. The plurality of positioning rods 502 are all fixedly installed at the top of the sampling cylinder mounting seat 3. An assembly ring 503 is sleeved and slidably installed on the outer circumference of the plurality of positioning rods 502. The air extraction pipe 4011 is arranged between the limit ring 501 and the assembly ring 503. A third spring 504 is sleeved on the outer circumference of the positioning rod 502, and the top end of the third spring 504 is fixedly connected to the bottom of the assembly ring 503, and the bottom end of the third spring 504 is fixedly connected to the top of the sampling cylinder mounting seat 3. A guide rod 4013 is fixedly installed at the bottom of the air extraction pipe 4011. A plurality of guide holes 505 that cooperate with the guide rod 4013 are formed at the top of the assembly ring 503. In this way, even if the sampling cylinder 4 rises, the separation of the conical head air duct 804 and the sampling cylinder 4 can be achieved under the limit block of the limit ring 501. And for the convenience of assembling the sampling cylinder 4, a pressing ring 506 is fixedly installed on the inner surface of the assembly ring 503 through a connecting plate. When the user squeezes the pressing ring 506 downward, the assembly ring 503 can be lowered, thereby exposing the positioning rod 502, and the user can directly take out the sampling cylinder 4.

[0063] The advantage of Embodiment 2 compared with Embodiment 1 is that after the air sampling of the sampling cylinder 4 at the completed processing station, the automatic upper position of the idle sampling cylinder 4 at the adjacent preparation station can be realized.

[0064] In summary, the sampling method of the pigsty air environment detection sampling device specifically includes the following steps:

[0065] S1. Control the electric telescopic rod 701 to extend. The electric telescopic rod 701 pushes the gable frame 702 to move. The gable frame 702 pulls the push rod 703 to drive the piston plate 704 to move in the air extraction cylinder 2. The air in the pigsty sequentially flows into the air extraction cylinder 2 through the conical head air duct 804, the external thread pipe 802 and the air guide cover 801.

[0066] S2. During the movement of the A-frame 702, the air guiding tooth plate 705 drives the gear sleeve 803 to rotate, causing the gear sleeve 803 to drive the conical head air duct 804 to move downward until the conical head air duct 804 is inserted into the sampling cylinder 4 and squeezes and pushes the sliding plug 403. The sliding plug 403 drives the collar 404 to stretch the second spring 405. When the air guiding groove 406 moves below the stepped cylinder 402, the air guiding tooth plate 705 separates from the gear sleeve 803. Before that, the A-frame 702 drives the push plate 706 to move, causing the rotary drive tooth plate 707 to mesh with the drive gear 602, and the first arc angle 708 contacts the drive gear 602. With the limiting cooperation of the limiting plate 6032 in the anti-backflow assembly 603, the rotary drive tooth plate 707 squeezes the fourth spring 709. At this time, the drive gear 602 does not rotate. As the push plate 706 moves, the rotary drive tooth plate 707 separates from the drive gear 602;

[0067] S3. Control the electric telescopic rod 701 to contract, so that the piston plate 704 squeezes the air in the pigsty that has been extracted in the air extraction cylinder 2. The extracted air is sequentially input into the sampling cylinder 4 through the air guiding cover 801, the external threaded pipe 802, the conical head air duct 804, and the air guiding groove 406. As the piston plate 704 moves, the extracted air squeezes the isolation plug 408, causing the isolation plug 408 to separate from the sealing plate 407. When the isolation plug 408 falls to the bottom of the inner cavity of the sampling cylinder 4, the air sampling of the pigsty is completed. At this time, the air guiding tooth plate 705 contacts and meshes with the gear sleeve 803. As the electric telescopic rod 701 continues to contract, the air guiding tooth plate 705 pushes the gear sleeve 803 to rotate, causing the gear sleeve 803 to drive the conical head air duct 804 to move upward until the conical head air duct 804 separates from the sampling cylinder 4. During this process, the second spring 405 resets, pulling the collar 404 to raise the sliding plug 403, and the sealing plate 407 seals the bottom of the stepped cylinder 402 to complete one sampling;

[0068] Among them, after the conical head air duct 804 separates from the sampling cylinder 4, the push plate 706 drives the rotary drive tooth plate 707 to contact and mesh with the drive gear 602. The rotary drive tooth plate 707 pushes the drive gear 602 to rotate. The drive gear 602 contacts the second arc angle 6034 and squeezes the limiting plate 6032, causing the limiting plate 6032 to compress the first spring 6033. During the rotation of the drive gear 602, it drives the rotating shaft 601 to rotate the sampling cylinder mounting seat 3 by one station, moves the sampling cylinder 4 that has completed sampling to the next preparatory station, and transports the sampling cylinder 4 that has not been sampled to the processing station directly below the conical head air duct 804.

[0069] In this way, through the setting of twelve sampling cylinders 4, the automatic sampling and retention of the air in the pigsty can be realized within twelve hours by repeating S1 - S3 every one hour, or the automatic sampling and retention of the air in the pigsty can be realized within twenty - four hours by repeating S1 - S3 every two hours.

[0070] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pig house air environment detection sampling device, comprising a support base (1) and an air pump (2) arranged on the support base (1), characterized in that: A sampling cylinder seating seat (3) is rotatably mounted on the support seat (1), a plurality of sampling cylinders (4) are placed on the sampling cylinder seating seat (3), a sampling cylinder positioning assembly (5) and a rotating preparatory member (6) are also provided on the sampling cylinder seating seat (3), and a suction drive assembly (7) and a gas guide assembly (8) are provided on the suction cylinder (2); The air extraction drive component (7) is used to drive the air extraction cylinder (2) to extract air, and to drive the air guide component (8) to communicate with the sampling cylinder (4); The air extraction drive assembly (7) is also used to drive the air extraction cylinder (2) to exhaust air, drive the air guide assembly (8) to separate from the sampling cylinder (4), and drive the rotating preparation part (6) to make the sampling cylinder placement seat (3) rotate intermittently.

2. A pig house air environment detection sampling device according to claim 1, characterized in that: The support seat (1) comprises a chassis (101), the front and rear sides of the top of the chassis (101) are fixedly connected to a loading plate (102) via support rods, the top of the loading plate (102) is fixedly connected to the bottom of the vacuum cylinder (2) via two connecting plates, and the right side of the top of the chassis (101) is fixedly connected to the bottom of the vacuum cylinder (2) via a support plate (103); The sampling tube placement seat (3) is rotatably mounted on the top of the chassis (101), and a plurality of placement grooves (301) are provided on the top of the sampling tube placement seat (3). The placement grooves (301) are used in conjunction with the sampling tube (4), and a first magnetic attraction ring (302) used in conjunction with the sampling tube (4) is embedded and fixed at the bottom of the inner cavity of the placement groove (301).

3. A pig house air environment detection sampling device according to claim 2, characterized in that: The air extraction drive assembly (7) comprises an electric telescopic rod (701), a herringbone frame (702) is fixedly mounted on the telescopic end of the electric telescopic rod (701), a push rod (703) is fixedly mounted on the top of one side of the herringbone frame (702), one end of the push rod (703) passes through the air extraction cylinder (2) and is fixedly mounted with a piston plate (704); An air guide tooth plate (705) and a push plate (706) are fixedly mounted on both sides of the bottom of one side of the herringbone frame (702), and a rotationally driven tooth plate (707) is slidably mounted on one side of the push plate (706) through a slot, a first arc angle (708) is provided on one side of the tooth of the rotationally driven tooth plate (707), and a fourth spring (709) is fixedly connected between the inside of the notch of the rotationally driven tooth plate (707) and the push plate (706); The electric telescopic rod (701) is fixedly mounted on one side of the vacuum cylinder (2) via a connecting plate, and one end of the electric telescopic rod (701) passes through the support plate (103) and extends to one side of the support plate (103).

4. A pig house air environment detection sampling device according to claim 3, characterized in that: The air guide assembly (8) comprises an air guide cover (801), the bottom of the air guide cover (801) is connected to an external threaded tube (802), a gear sleeve (803) is sleeved and threadedly mounted on the bottom of the outer periphery of the external threaded tube (802), a cone-head air guide tube (804) is passed through and fixedly mounted on the bottom of the gear sleeve (803), and the top of the outer periphery of the cone-head air guide tube (804) is in sliding contact with the inner surface of the external threaded tube (802); The air guide cover (801) is fixedly mounted on one side of the air pump (2) and is in communication with the air pump (2); The air guide tooth plate (705) is meshed with the outer periphery of the gear sleeve (803).

5. A pig house air environment detection sampling device according to claim 4, characterized in that: The top of the sampling barrel (4) is provided with a socket (401) for use with a cone-shaped air guide tube (804); the top of the inner cavity of the sampling barrel (4) is fixedly installed with a stepped barrel (402); the bottom of the stepped barrel (402) is slidably installed with a sliding plug (403); the outer periphery of the sliding plug (403) is fixedly installed with a collar (404); the collar (404) is slidably installed on the top of the inner cavity of the stepped barrel (402); a second spring (405) is fixedly installed between the top of the limiting ring (501) and the top of the inner cavity of the sampling barrel (4); a plurality of air guide grooves (406) are provided on the top of the sliding plug (403); a sealing disk (407) is fixedly installed on the bottom of the sliding plug (403); an isolation plug (408) is also slidably installed inside the sampling barrel (4); and a through hole (4014) is provided at the bottom of the sampling barrel (4); The top of the isolation plug (408) and the bottom of the sealing disk (407) are both inlaid with a first magnet (409), and the two first magnets (409) are attracted and used together. The bottom of the isolation plug (408) and the bottom of the inner cavity of the sampling tube (4) are both inlaid with a second magnetic attraction ring (4010), and the two second magnetic attraction rings (4010) are attracted and used together. The second magnetic attraction ring (4010) arranged at the bottom is used in combination with the first magnetic attraction ring (302); One side of the sampling cylinder (4) is connected to an air intake pipe (4011), the air intake pipe (4011) is arranged at the bottom of the stepped cylinder (402), and a control valve (4012) is arranged on the outer periphery of the air intake pipe (4011).

6. A pig house air environment detection sampling device according to claim 5, characterized in that: The sampling tube positioning assembly (5) comprises a limiting ring (501), a plurality of positioning rods (502) are fixedly mounted on the bottom of the limiting ring (501), an assembly ring (503) is sleeved and slidably mounted on the outer circumference of the plurality of positioning rods (502), a third spring (504) is sleeved on the outer circumference of the positioning rods (502), and the top end of the third spring (504) is fixedly connected to the bottom of the assembly ring (503); The air intake pipe (4011) is arranged between the limiting ring (501) and the assembly ring (503); a guide rod (4013) is fixedly installed at the bottom of the air intake pipe (4011); and a plurality of guide holes (505) for use with the guide rod (4013) are opened at the top of the assembly ring (503); A pressing ring (506) is fixedly mounted on the inner surface of the assembly ring (503) via a connecting plate; The plurality of positioning rods (502) are fixedly mounted on the top of the sampling tube seating seat (3), and the bottom end of the third spring (504) is fixedly connected to the top of the sampling tube seating seat (3).

7. A pig house air environment detection sampling device according to claim 3, characterized in that: The rotating preparatory member (6) comprises a rotating shaft (601), a driving gear (602) is sleeved and fixedly mounted on the outer circumference of the rotating shaft (601), the top end of the rotating shaft (601) is rotatably connected to the bottom of the loading plate (102) via a bearing, and the bottom end of the rotating shaft (601) is fixedly connected to the top of the sampling tube placement seat (3); The driving gear (602) is meshed with the rotating driving tooth plate (707).

8. A pig house air environment detection sampling device according to claim 7, characterized in that: A check assembly (603) for use with a driving gear (602) is fixedly mounted on one side of the loading plate (102); the check assembly (603) comprises a mounting box (6031); a limit plate (6032) is fixedly mounted on one side of the mounting box (6031); a first spring (6033) is fixedly connected between one side of the limit plate (6032) and one side of the inner cavity of the mounting box (6031); the limit plate (6032) is meshed with the driving gear (602); and a second arc angle (6034) for use with the driving gear (602) is also provided on one side of the limit plate (6032).

9. A sampling method for a pig house air environment detection sampling device, characterized in that: The specific steps include: S1, controlling the electric telescopic rod (701) to extend, the electric telescopic rod (701) pushes the herringbone frame (702) to move, the herringbone frame (702) pulls the push rod (703) to drive the piston plate (704) to move in the air pump (2), and the air in the pig house flows into the air pump (2) through the cone head air guide pipe (804), the external threaded pipe (802) and the air guide cover (801) in sequence; S2. During the movement of the herringbone frame (702), the air guide tooth plate (705) drives the gear sleeve (803) to rotate, so that the gear sleeve (803) drives the cone head air guide tube (804) to move downward, until the cone head air guide tube (804) is inserted into the sampling tube (4), and the sliding plug (403) is squeezed and pushed, and the sliding plug (403) drives the collar (404) to stretch the second spring (405). When the air guide groove (406) moves to the bottom of the stepped tube (402), the air guide tooth plate (705) is separated from the gear sleeve (803); S3, control the electric telescopic rod (701) to retract, so that the piston plate (704) squeezes the pig house air that has been extracted in the suction cylinder (2), and the extracted air is input into the sampling cylinder (4) through the air guide cover (801), the external threaded tube (802), the cone head air guide tube (804) and the air guide groove (406) in sequence. As the piston plate (704) moves, the extracted air squeezes the isolation plug (408), so that the isolation plug (408) is separated from the sealing disk (407). When the isolation plug (408) falls to the bottom of the inner cavity of the sampling cylinder (4), the pig house air sampling is completed. At this time, the air guide tooth plate (705) contacts and meshes with the gear sleeve (803). As the electric telescopic rod (701) continues to shrink, the air guide tooth plate (705) pushes the gear sleeve (803) to rotate, so that the gear sleeve (803) drives the cone head air guide tube (804) to move upward until the cone head air guide tube (804) is separated from the sampling tube (4). During the process, the second spring (405) is reset, pulling the collar (404) to make the sliding plug (403) rise, so that the sealing disk (407) seals the bottom of the stepped tube (402), completing a sampling.

10. The sampling method of the pig house air environment detection sampling device according to claim 9 is characterized in that: In the process of the electric telescopic rod (701) pushing the herringbone frame (702) to move, the herringbone frame (702) drives the push plate (706) to move. When the push plate (706) drives the rotating drive tooth plate (707) to mesh with the driving gear (602), the first arc angle (708) contacts the driving gear (602), so that the rotating drive tooth plate (707) presses the fourth spring (709). At this time, the driving gear (602) does not rotate. As the push plate (706) moves, the rotating drive tooth plate (707) separates from the driving gear (602); In the process of controlling the electric telescopic rod (701) to retract, after the cone-shaped air guide tube (804) is separated from the sampling tube (4), the push plate (706) drives the rotating drive tooth plate (707) to contact and mesh with the driving gear (602), and the rotating drive tooth plate (707) drives the driving gear (602) to rotate, and the driving gear (602) contacts the second arc angle (6034) and squeezes the limit plate (6032), so that the limit plate (6032) compresses the first spring (6033). During the rotation of the driving gear (602), the rotating shaft (601) is driven to rotate the sampling tube mounting seat (3) by one station, and the sampling tube (4) that has completed sampling is moved to the next station, and the sampling tube (4) that has not been sampled is transported to the bottom of the cone-shaped air guide tube (804).

Images